5LUR

An avidin mutant

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP		294	Drop size: 150 nl of protein-ligand solution and well solution. Protein-ligand solution: 1.8 mg/ml of protein solution (20 mM sodium phosphate, 1M sodium chloride, 20mM imidazole, pH 7.4) and 50 mM ligand solution (1.57 mg in 100 microL of water) were mixed in 10:1 (v/v) ratio. Well solution: 0.18 M sodium chloride, 0.09 M sodium cacodylate (pH 6.5) and 1.8 M ammonium sulfate.

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.23

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.13	α = 90
b = 80.35	β = 90
c = 43.42	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 4M		2016-02-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE MASSIF-3	0.9677	ESRF	MASSIF-3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.7	19.56	96.3	0.12	0.99	10.37	3.8		7458		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.7	2.8	98.7		0.6	0.7	2.11	4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	4U46	2.7	19.56	7073	370	96.19	0.17971	0.17662	0.23995	RANDOM	36.703

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
2.05			0.56		-2.61

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.898
r_dihedral_angle_3_deg	18.244
r_dihedral_angle_4_deg	16.997
r_dihedral_angle_1_deg	7.47
r_long_range_B_refined	6.89
r_long_range_B_other	6.89
r_scangle_other	4.602
r_mcangle_it	3.862
r_mcangle_other	3.862
r_scbond_it	2.751
r_scbond_other	2.749
r_mcbond_it	2.288
r_mcbond_other	2.287
r_angle_refined_deg	1.717
r_angle_other_deg	0.965
r_chiral_restr	0.099
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.002
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1858
Nucleic Acid Atoms
Solvent Atoms	26
Heterogen Atoms	47

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing